schumacher



3 Sheets-Sheet 1. J. SCHUMAGHEB..

PERFORATING MACHINE.

(No Model.)

(No Model.) 3 Sheets-Sheet 2.

. J. SGHUMAGHER.

PBRPORAHNG MAGHINE. No. 339,937. Patented Apr. 13, 1886.

N. PETERS. Phmo-Lxlhognpher. wnlhingmn, D4 C 3 Sheets-Sheet 3.

(N'o Model.)

J. SGHUMAGHBR. PERFORATING MACHINE.

No.v 339,937.

Patented Apr. 13, 1886.

N. PETERS, Phowfulhogmpner. washingmm n.12.

NITED STATES PATENT Fries.

JACOB SCHUMACHER, OF GAMDEN, NEV JERSEY.

PERFORATlNG-MACHiNE.

SPECIFICATION forming part of Letters Patent No. 339,937, dated April 13, 1886.

(No model.)

To all whom it may concern,.-

Be it known that I, JACOB SCHUMACHER, a citizen of the United States, and residing in Camden, New Jersey/,have invented certain Improvements in Performing-Machines, of which the following is a specification.

My invention consists of an improved machine for perforating paper or similar material, more especially adapted for the perforating of paper on given linesto produce patterns for cutting out cloth, 85e.

In the accompanying drawings, Figure l is a side view of the machine partly in section. Fig. 2 is an end view drawn to an enlarged scale. Fig. 3 is a plan view of a portion of the bed of the machine with the throat-plates draw out, and Fig. 4 is a view of the ily-wheel end of the machine.

The operating parts of the machine are similar in general construction to a sewing-machine, the arm A, however, being considerably longer than usual, in order to permit the manipulation of large sheets of paper and the turning of them around under the arm for perforating them on any desired lines. The bedplate B may be mounted on any suitable stand or table to permit the operating parts to be driven by treadle or other power, through the medium of a belt passing over a grooved pulley, carrying the fly-wheel C on the drivingshaft D. This shaft D carries at its outer end a crank-pin, d, which works in the slotted frame e, (shown by dotted lines in Fig. 2,) secured to the vertically-reeiprocating bar E, which carries the punch F, adj ustably mounted in a chuck at the lower end of the bar E. This bar is mounted in suitable guides in the head A of the machine, and on lugs a ou this head is mounted the vertical presser-bar G, acted on bya spring, g, and provided with the usual operating-handle, g', the upper end of which may be adapted to a slot in the upper lug a when the presser-bar is in its lowered position, Fig. 2. Aseeond operating-handle, g', may be provided for the presser-bar just above the lower guide-lug a. The presserbar may, however, be of any suitable construction, such as used in sewing-machines, but the presser-foot H, carried by the bar, I make 'of the bifureated form shown in Fig. l, and open at the front, the two Vforks or branches of the presser-foot being adapted to rest on two rotary feed-wheels, J J, with roughened or serrated peripheries. These feed-wheels are mounted on a horizontal shaft, K, adapted k to bearings in the bed B of the machine, and extending lo the rear, where, as shown in Fig. 4, it is provided with a wheel, L, preferably grooved to receive an intermittent feed motion from the shaft D through the connecting-rod L. This connecting-rod L is connected to an adjustable crank-pin, Z, on the fly-wheel C, while its opposite end is pivoted to an arm, m, loosely guided on the shaft K, and having a spring friction-pawl, m', adapted to engage with the grooved periphery of the wheel k, so that at every movement of the connecting-rod in the direction of the arrow l, Fig. 4, the wheel la will be turned to an extent corresponding with the position of the adjustable crankpin Z, while on the movement in the opposite direction the spriug-pawl m will slide on the periphery of the wheel k without moving the latter.

The crank-pin Z is carried by a slide, l', adapted to a transverse groove in the hub of the wheel C, and controlled by a. headed screw, Z2. Thusan intermittent feed motion will be imparted to the shaft K from the continuously-rotating shaft D, and this feed motion may be varied by adjusting the slide carrying the crank-pin l.

T0 prevent back motion ofthe wheel C and its shaft, I provide a dog, n, Fig. 4, pivoted to the frame and provided with an adjustable back stop, a', so that so long as the wheel C rotates in the direction of its arrow 2 the dog will not interfere with its operation; but should it be accidentally turned in the opposite direction the dog will immediately engage with the grooved pulley of the wheel @,and by friction therewith arrest its motion.

As will be seen on reference to Figs. l and 3, the die P, of hardened steel, is carried by a bridge, P, extending between the two feedwheels J J and secured to the opposite vertical sides of the base or bed B in any suitable manner.

The die P is secured to the bridge by screws or equivalent means, so as to be readily detachable,to be replaced by another, which may have a hole of a different size, and the punch IOO F may be at the same time removed and another of a size corresponding with the hole in the new die substituted therefor.

The portion of the bridge P immediately below the die P is provided with an enlarged opening for the free passage of the small disks punched out of the material by the rapidlyreciprocating punch F when the machine is in operation.

The body of the machine is provided with the usual throat-plates, R R, which can be drawn back, as shown in Fig. 3, to enable the operatorto get at the feed-wheels or remove the die or its bridge.

It will be observed thatfin this case there is no shuttle or feed-gear or other operating devices, except the feed-wheels J, to interfere with the ready discharge of the small disks punched out of the paper or other material.

I claim as my invention- The combination of the bed-plate, Yreciproeating punch, and a pair of feed-wheels, with 

